148 lines
3.3 KiB
PHP
148 lines
3.3 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpFoundation;
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/**
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* An event generated on the server intended for streaming to the client
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* as part of the SSE streaming technique.
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*
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* @implements \IteratorAggregate<string>
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*
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* @author Yonel Ceruto <open@yceruto.dev>
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*/
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class ServerEvent implements \IteratorAggregate
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{
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/**
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* @param string|iterable<string> $data The event data field for the message
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* @param string|null $type The event type
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* @param int|null $retry The number of milliseconds the client should wait
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* before reconnecting in case of network failure
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* @param string|null $id The event ID to set the EventSource object's last event ID value
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* @param string|null $comment The event comment
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*/
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public function __construct(
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private string|iterable $data,
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private ?string $type = null,
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private ?int $retry = null,
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private ?string $id = null,
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private ?string $comment = null,
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) {
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}
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public function getData(): iterable|string
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{
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return $this->data;
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}
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/**
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* @return $this
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*/
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public function setData(iterable|string $data): static
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{
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$this->data = $data;
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return $this;
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}
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public function getType(): ?string
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{
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return $this->type;
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}
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/**
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* @return $this
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*/
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public function setType(string $type): static
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{
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$this->type = $type;
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return $this;
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}
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public function getRetry(): ?int
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{
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return $this->retry;
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}
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/**
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* @return $this
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*/
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public function setRetry(?int $retry): static
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{
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$this->retry = $retry;
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return $this;
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}
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public function getId(): ?string
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{
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return $this->id;
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}
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/**
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* @return $this
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*/
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public function setId(string $id): static
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{
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$this->id = $id;
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return $this;
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}
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public function getComment(): ?string
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{
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return $this->comment;
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}
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public function setComment(string $comment): static
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{
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$this->comment = $comment;
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return $this;
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}
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/**
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* @return \Traversable<string>
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*/
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public function getIterator(): \Traversable
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{
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static $lastRetry = null;
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$head = '';
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if ($this->comment) {
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$head .= \sprintf(': %s', $this->comment)."\n";
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}
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if ($this->id) {
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$head .= \sprintf('id: %s', $this->id)."\n";
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}
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if ($this->retry > 0 && $this->retry !== $lastRetry) {
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$head .= \sprintf('retry: %s', $lastRetry = $this->retry)."\n";
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}
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if ($this->type) {
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$head .= \sprintf('event: %s', $this->type)."\n";
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}
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yield $head;
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if ($this->data) {
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if (is_iterable($this->data)) {
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foreach ($this->data as $data) {
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yield \sprintf('data: %s', $data)."\n";
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}
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} else {
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yield \sprintf('data: %s', $this->data)."\n";
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}
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}
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yield "\n";
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}
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}
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